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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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| Attributes | |
| ACN | 1499761 |
| Time | |
| Date | 201711 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.TRACON |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Decathlon 8KCAB |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Flight Plan | None |
| Person 1 | |
| Function | Instructor |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 40 Flight Crew Total 2100 Flight Crew Type 100 |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Inflight Event / Encounter Loss Of Aircraft Control |
Narrative:
Flight was an aerobatic instructional flight. The plan was to remain VMC and at or above 1;500 ft at all times. Aerobatic maneuvers were entered at 2;000-2;500 ft to maintain a 1;500 ft floor. During a half cuban 8; with the instructor (myself) at the controls; I inadvertently entered an inverted spin at the top of the maneuver. I recovered at about 700 ft AGL.on the upline of the entry; I heard the stall horn go off. I eased off a bit and the aircraft went over the top fine. I was uncoordinated in my roll; and entered the spin. I need to remember that loaded maneuvers increase stall speed and impart a yaw -hence a spin. I recovered using the meigs-bueller method (throttle-idle; hands off) as I couldn't tell which way we were spinning from the back seat of the decathlon.
Original NASA ASRS Text
Title: An American Champion Decathlon pilot reported inadvertently entering a spin condition while performing aerobatic maneuvers. A successful spin recovery was accomplished.
Narrative: Flight was an aerobatic instructional flight. The plan was to remain VMC and at or above 1;500 ft at all times. Aerobatic maneuvers were entered at 2;000-2;500 ft to maintain a 1;500 ft floor. During a half Cuban 8; with the instructor (myself) at the controls; I inadvertently entered an inverted spin at the top of the maneuver. I recovered at about 700 ft AGL.On the upline of the entry; I heard the stall horn go off. I eased off a bit and the aircraft went over the top fine. I was uncoordinated in my roll; and entered the spin. I need to remember that loaded maneuvers increase stall speed and impart a yaw -hence a spin. I recovered using the Meigs-Bueller method (throttle-Idle; hands off) as I couldn't tell which way we were spinning from the back seat of the Decathlon.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.